docs: def _get_fault_type_dummy_variables(self, rup):
          """
          The original classification considers four style of faulting categories
          (normal, strike-slip, reverse-oblique and reverse).
          """
  
          Fn, Fr = 0, 0
          if rup.rake >= -112.5 and rup.rake <= -67.5:
              # normal
              Fn = 1
          elif rup.rake >= 22.5 and rup.rake <= 157.5:
              # Joins both the reverse and reverse-oblique categories
              Fr = 1
          return Fn, Fr